越南巴达棱湾沿海上升流的观测分析-海洋预报

越南巴达棱湾沿海上升流的观测分析

单位：1. 国家海洋局南海调查技术中心, 广东广州 510300;
2. 国家海洋局南海维权技术与应用重点实验室, 广东广州 510300;
3. 国家海洋环境预报中心, 北京 100081

分类号：P717

出版年·卷·期（页码）：2019·36·第六期（73-79）

摘要：

基于越南巴达棱湾周年站2007年7、8月份的温盐和气象资料，对该海湾沿岸上升流现象进行了分析。结果表明：观测期间，越南巴达棱湾沿岸海域的水团具有低温、高盐的性质，显示了沿岸上升流的存在。上升流强度和风场的变化密切相关，海面风场平行岸线分量的变化是夏季该上升流强度发生改变的重要原因。卫星遥感海表面温度数据进一步证实上升流的存在，且上升流现象呈现出强-弱-强的变化趋势，8月强度大于7月。上升流现象主要发生于近岸，富贵岛离岸较远，受上升流影响较小。

Based on observed temperature, salinity and meteorological data of Badaleng Bay Anniversary Station in Vietnam in July and August 2007, upwelling along the Bay coast were analyzed. It shows that the coastal water masses are low temperature and high salinity which could be transported by coastal upwelling. Upwelling intensity depends on wind variation. The wind component along the shoreline is an important reason for the variation of upwelling intensity in summer. Furthermore, the satellite remote sensing data of sea surface temperature confirm the existence of upwelling which shows a strong-weak-strong trend. Its intensity in August is stronger than that in July. Upwelling mainly occurs near shore, while Fugui Island is far away from shore and is less affected by upwelling.

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